./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-commit-1.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d2ff082-d528-43eb-88bf-22703ae2f05b/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d2ff082-d528-43eb-88bf-22703ae2f05b/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d2ff082-d528-43eb-88bf-22703ae2f05b/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d2ff082-d528-43eb-88bf-22703ae2f05b/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-commit-1.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d2ff082-d528-43eb-88bf-22703ae2f05b/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d2ff082-d528-43eb-88bf-22703ae2f05b/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4b2db95108d1ec3739bf941ab9d238fd5c3dd7467faa747c6c0552ae2048ee95 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 21:57:45,344 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 21:57:45,414 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d2ff082-d528-43eb-88bf-22703ae2f05b/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-06 21:57:45,419 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 21:57:45,420 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 21:57:45,447 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 21:57:45,447 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 21:57:45,448 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 21:57:45,449 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 21:57:45,449 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 21:57:45,450 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 21:57:45,451 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 21:57:45,451 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 21:57:45,452 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 21:57:45,453 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 21:57:45,453 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 21:57:45,454 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 21:57:45,455 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 21:57:45,455 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 21:57:45,456 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 21:57:45,456 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 21:57:45,457 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 21:57:45,458 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 21:57:45,458 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 21:57:45,458 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 21:57:45,459 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 21:57:45,459 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 21:57:45,460 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 21:57:45,460 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:57:45,461 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 21:57:45,465 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 21:57:45,465 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 21:57:45,466 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 21:57:45,466 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 21:57:45,467 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 21:57:45,468 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 21:57:45,469 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 21:57:45,469 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 21:57:45,469 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 21:57:45,470 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d2ff082-d528-43eb-88bf-22703ae2f05b/bin/uautomizer-verify-WvqO1wxjHP/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d2ff082-d528-43eb-88bf-22703ae2f05b/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b2db95108d1ec3739bf941ab9d238fd5c3dd7467faa747c6c0552ae2048ee95 [2023-11-06 21:57:45,727 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 21:57:45,759 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 21:57:45,762 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 21:57:45,764 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 21:57:45,764 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 21:57:45,766 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d2ff082-d528-43eb-88bf-22703ae2f05b/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/weaver/popl20-commit-1.wvr.c [2023-11-06 21:57:48,918 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 21:57:49,168 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 21:57:49,170 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d2ff082-d528-43eb-88bf-22703ae2f05b/sv-benchmarks/c/weaver/popl20-commit-1.wvr.c [2023-11-06 21:57:49,183 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d2ff082-d528-43eb-88bf-22703ae2f05b/bin/uautomizer-verify-WvqO1wxjHP/data/7a646b95a/75f15dead52044c496881de7ef74691d/FLAGee0400b08 [2023-11-06 21:57:49,207 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d2ff082-d528-43eb-88bf-22703ae2f05b/bin/uautomizer-verify-WvqO1wxjHP/data/7a646b95a/75f15dead52044c496881de7ef74691d [2023-11-06 21:57:49,210 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 21:57:49,212 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 21:57:49,216 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 21:57:49,216 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 21:57:49,222 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 21:57:49,225 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:57:49" (1/1) ... [2023-11-06 21:57:49,227 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53de12d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:57:49, skipping insertion in model container [2023-11-06 21:57:49,227 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:57:49" (1/1) ... [2023-11-06 21:57:49,256 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 21:57:49,467 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d2ff082-d528-43eb-88bf-22703ae2f05b/sv-benchmarks/c/weaver/popl20-commit-1.wvr.c[4604,4617] [2023-11-06 21:57:49,478 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:57:49,493 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 21:57:49,527 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d2ff082-d528-43eb-88bf-22703ae2f05b/sv-benchmarks/c/weaver/popl20-commit-1.wvr.c[4604,4617] [2023-11-06 21:57:49,536 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:57:49,546 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 21:57:49,546 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 21:57:49,555 INFO L206 MainTranslator]: Completed translation [2023-11-06 21:57:49,555 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:57:49 WrapperNode [2023-11-06 21:57:49,557 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 21:57:49,558 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 21:57:49,559 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 21:57:49,559 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 21:57:49,568 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:57:49" (1/1) ... [2023-11-06 21:57:49,578 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:57:49" (1/1) ... [2023-11-06 21:57:49,619 INFO L138 Inliner]: procedures = 25, calls = 68, calls flagged for inlining = 20, calls inlined = 24, statements flattened = 349 [2023-11-06 21:57:49,620 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 21:57:49,621 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 21:57:49,621 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 21:57:49,621 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 21:57:49,633 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:57:49" (1/1) ... [2023-11-06 21:57:49,633 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:57:49" (1/1) ... [2023-11-06 21:57:49,639 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:57:49" (1/1) ... [2023-11-06 21:57:49,639 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:57:49" (1/1) ... [2023-11-06 21:57:49,654 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:57:49" (1/1) ... [2023-11-06 21:57:49,660 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:57:49" (1/1) ... [2023-11-06 21:57:49,664 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:57:49" (1/1) ... [2023-11-06 21:57:49,666 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:57:49" (1/1) ... [2023-11-06 21:57:49,672 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 21:57:49,673 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 21:57:49,673 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 21:57:49,673 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 21:57:49,674 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:57:49" (1/1) ... [2023-11-06 21:57:49,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:57:49,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d2ff082-d528-43eb-88bf-22703ae2f05b/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:57:49,717 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d2ff082-d528-43eb-88bf-22703ae2f05b/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 21:57:49,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d2ff082-d528-43eb-88bf-22703ae2f05b/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 21:57:49,768 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 21:57:49,768 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 21:57:49,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 21:57:49,769 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 21:57:49,769 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-06 21:57:49,769 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-06 21:57:49,770 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-06 21:57:49,770 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-06 21:57:49,770 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-06 21:57:49,770 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-06 21:57:49,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 21:57:49,773 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-06 21:57:49,773 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-06 21:57:49,774 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 21:57:49,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 21:57:49,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 21:57:49,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 21:57:49,777 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 21:57:49,919 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 21:57:49,921 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 21:57:50,685 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 21:57:51,008 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 21:57:51,009 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-06 21:57:51,014 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:57:51 BoogieIcfgContainer [2023-11-06 21:57:51,014 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 21:57:51,018 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 21:57:51,018 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 21:57:51,022 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 21:57:51,024 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:57:49" (1/3) ... [2023-11-06 21:57:51,025 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ed71c97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:57:51, skipping insertion in model container [2023-11-06 21:57:51,026 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:57:49" (2/3) ... [2023-11-06 21:57:51,029 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ed71c97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:57:51, skipping insertion in model container [2023-11-06 21:57:51,030 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:57:51" (3/3) ... [2023-11-06 21:57:51,034 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-commit-1.wvr.c [2023-11-06 21:57:51,045 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 21:57:51,059 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 21:57:51,059 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 21:57:51,059 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 21:57:51,193 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-06 21:57:51,253 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 258 places, 267 transitions, 555 flow [2023-11-06 21:57:51,380 INFO L124 PetriNetUnfolderBase]: 19/264 cut-off events. [2023-11-06 21:57:51,380 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-06 21:57:51,388 INFO L83 FinitePrefix]: Finished finitePrefix Result has 277 conditions, 264 events. 19/264 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 144 event pairs, 0 based on Foata normal form. 0/244 useless extension candidates. Maximal degree in co-relation 226. Up to 2 conditions per place. [2023-11-06 21:57:51,389 INFO L82 GeneralOperation]: Start removeDead. Operand has 258 places, 267 transitions, 555 flow [2023-11-06 21:57:51,397 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 244 places, 253 transitions, 524 flow [2023-11-06 21:57:51,405 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 21:57:51,435 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 244 places, 253 transitions, 524 flow [2023-11-06 21:57:51,440 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 244 places, 253 transitions, 524 flow [2023-11-06 21:57:51,441 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 244 places, 253 transitions, 524 flow [2023-11-06 21:57:51,549 INFO L124 PetriNetUnfolderBase]: 19/253 cut-off events. [2023-11-06 21:57:51,549 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-06 21:57:51,551 INFO L83 FinitePrefix]: Finished finitePrefix Result has 266 conditions, 253 events. 19/253 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 143 event pairs, 0 based on Foata normal form. 0/234 useless extension candidates. Maximal degree in co-relation 226. Up to 2 conditions per place. [2023-11-06 21:57:51,556 INFO L119 LiptonReduction]: Number of co-enabled transitions 1460 [2023-11-06 21:58:02,958 INFO L134 LiptonReduction]: Checked pairs total: 2861 [2023-11-06 21:58:02,958 INFO L136 LiptonReduction]: Total number of compositions: 270 [2023-11-06 21:58:02,997 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 21:58:03,006 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@57d469c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 21:58:03,006 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-06 21:58:03,015 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 21:58:03,015 INFO L124 PetriNetUnfolderBase]: 6/29 cut-off events. [2023-11-06 21:58:03,016 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-06 21:58:03,016 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:58:03,017 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:58:03,018 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-06 21:58:03,024 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:58:03,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1783623523, now seen corresponding path program 1 times [2023-11-06 21:58:03,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:58:03,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583847647] [2023-11-06 21:58:03,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:03,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:58:03,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:03,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:58:03,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:58:03,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583847647] [2023-11-06 21:58:03,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583847647] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:58:03,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:58:03,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 21:58:03,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539575644] [2023-11-06 21:58:03,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:58:03,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 21:58:03,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:58:03,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:58:03,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:58:03,801 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 237 out of 537 [2023-11-06 21:58:03,808 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 30 transitions, 78 flow. Second operand has 3 states, 3 states have (on average 243.33333333333334) internal successors, (730), 3 states have internal predecessors, (730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:58:03,808 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:58:03,808 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 237 of 537 [2023-11-06 21:58:03,810 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:58:04,074 INFO L124 PetriNetUnfolderBase]: 451/666 cut-off events. [2023-11-06 21:58:04,075 INFO L125 PetriNetUnfolderBase]: For 68/68 co-relation queries the response was YES. [2023-11-06 21:58:04,079 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1414 conditions, 666 events. 451/666 cut-off events. For 68/68 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 2332 event pairs, 73 based on Foata normal form. 1/500 useless extension candidates. Maximal degree in co-relation 1134. Up to 548 conditions per place. [2023-11-06 21:58:04,086 INFO L140 encePairwiseOnDemand]: 532/537 looper letters, 42 selfloop transitions, 4 changer transitions 1/47 dead transitions. [2023-11-06 21:58:04,086 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 47 transitions, 221 flow [2023-11-06 21:58:04,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 21:58:04,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 21:58:04,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 759 transitions. [2023-11-06 21:58:04,113 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47113594040968343 [2023-11-06 21:58:04,114 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 759 transitions. [2023-11-06 21:58:04,115 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 759 transitions. [2023-11-06 21:58:04,121 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:58:04,124 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 759 transitions. [2023-11-06 21:58:04,130 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 253.0) internal successors, (759), 3 states have internal predecessors, (759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:58:04,139 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 537.0) internal successors, (2148), 4 states have internal predecessors, (2148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:58:04,142 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 537.0) internal successors, (2148), 4 states have internal predecessors, (2148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:58:04,144 INFO L175 Difference]: Start difference. First operand has 34 places, 30 transitions, 78 flow. Second operand 3 states and 759 transitions. [2023-11-06 21:58:04,146 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 47 transitions, 221 flow [2023-11-06 21:58:04,151 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 47 transitions, 199 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-11-06 21:58:04,154 INFO L231 Difference]: Finished difference. Result has 31 places, 33 transitions, 92 flow [2023-11-06 21:58:04,156 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=537, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=92, PETRI_PLACES=31, PETRI_TRANSITIONS=33} [2023-11-06 21:58:04,160 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, -3 predicate places. [2023-11-06 21:58:04,161 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 33 transitions, 92 flow [2023-11-06 21:58:04,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 243.33333333333334) internal successors, (730), 3 states have internal predecessors, (730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:58:04,162 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:58:04,162 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:58:04,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 21:58:04,163 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-06 21:58:04,164 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:58:04,164 INFO L85 PathProgramCache]: Analyzing trace with hash -1700241142, now seen corresponding path program 1 times [2023-11-06 21:58:04,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:58:04,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10466015] [2023-11-06 21:58:04,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:04,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:58:04,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:04,330 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:58:04,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:58:04,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10466015] [2023-11-06 21:58:04,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10466015] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:58:04,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:58:04,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 21:58:04,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390698763] [2023-11-06 21:58:04,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:58:04,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 21:58:04,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:58:04,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:58:04,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:58:04,343 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 235 out of 537 [2023-11-06 21:58:04,344 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 33 transitions, 92 flow. Second operand has 3 states, 3 states have (on average 242.0) internal successors, (726), 3 states have internal predecessors, (726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:58:04,345 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:58:04,345 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 235 of 537 [2023-11-06 21:58:04,345 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:58:04,646 INFO L124 PetriNetUnfolderBase]: 732/1099 cut-off events. [2023-11-06 21:58:04,647 INFO L125 PetriNetUnfolderBase]: For 204/204 co-relation queries the response was YES. [2023-11-06 21:58:04,648 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2510 conditions, 1099 events. 732/1099 cut-off events. For 204/204 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 4016 event pairs, 296 based on Foata normal form. 52/1058 useless extension candidates. Maximal degree in co-relation 1594. Up to 580 conditions per place. [2023-11-06 21:58:04,656 INFO L140 encePairwiseOnDemand]: 534/537 looper letters, 51 selfloop transitions, 2 changer transitions 0/53 dead transitions. [2023-11-06 21:58:04,656 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 53 transitions, 246 flow [2023-11-06 21:58:04,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 21:58:04,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 21:58:04,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 757 transitions. [2023-11-06 21:58:04,661 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46989447548106766 [2023-11-06 21:58:04,661 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 757 transitions. [2023-11-06 21:58:04,662 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 757 transitions. [2023-11-06 21:58:04,663 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:58:04,663 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 757 transitions. [2023-11-06 21:58:04,666 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 252.33333333333334) internal successors, (757), 3 states have internal predecessors, (757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:58:04,672 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 537.0) internal successors, (2148), 4 states have internal predecessors, (2148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:58:04,674 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 537.0) internal successors, (2148), 4 states have internal predecessors, (2148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:58:04,675 INFO L175 Difference]: Start difference. First operand has 31 places, 33 transitions, 92 flow. Second operand 3 states and 757 transitions. [2023-11-06 21:58:04,675 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 53 transitions, 246 flow [2023-11-06 21:58:04,677 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 53 transitions, 243 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 21:58:04,678 INFO L231 Difference]: Finished difference. Result has 33 places, 33 transitions, 96 flow [2023-11-06 21:58:04,679 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=537, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=96, PETRI_PLACES=33, PETRI_TRANSITIONS=33} [2023-11-06 21:58:04,680 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, -1 predicate places. [2023-11-06 21:58:04,680 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 33 transitions, 96 flow [2023-11-06 21:58:04,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 242.0) internal successors, (726), 3 states have internal predecessors, (726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:58:04,681 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:58:04,682 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:58:04,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 21:58:04,682 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-06 21:58:04,683 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:58:04,683 INFO L85 PathProgramCache]: Analyzing trace with hash 1701867410, now seen corresponding path program 1 times [2023-11-06 21:58:04,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:58:04,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335751355] [2023-11-06 21:58:04,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:04,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:58:04,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:04,812 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:58:04,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:58:04,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335751355] [2023-11-06 21:58:04,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335751355] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:58:04,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:58:04,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 21:58:04,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856974514] [2023-11-06 21:58:04,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:58:04,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 21:58:04,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:58:04,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:58:04,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:58:04,826 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 235 out of 537 [2023-11-06 21:58:04,828 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 33 transitions, 96 flow. Second operand has 3 states, 3 states have (on average 242.0) internal successors, (726), 3 states have internal predecessors, (726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:58:04,828 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:58:04,828 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 235 of 537 [2023-11-06 21:58:04,829 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:58:05,117 INFO L124 PetriNetUnfolderBase]: 549/834 cut-off events. [2023-11-06 21:58:05,117 INFO L125 PetriNetUnfolderBase]: For 196/196 co-relation queries the response was YES. [2023-11-06 21:58:05,119 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1974 conditions, 834 events. 549/834 cut-off events. For 196/196 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 2995 event pairs, 139 based on Foata normal form. 30/793 useless extension candidates. Maximal degree in co-relation 680. Up to 670 conditions per place. [2023-11-06 21:58:05,124 INFO L140 encePairwiseOnDemand]: 534/537 looper letters, 39 selfloop transitions, 2 changer transitions 6/47 dead transitions. [2023-11-06 21:58:05,125 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 47 transitions, 221 flow [2023-11-06 21:58:05,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 21:58:05,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 21:58:05,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 752 transitions. [2023-11-06 21:58:05,130 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46679081315952825 [2023-11-06 21:58:05,130 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 752 transitions. [2023-11-06 21:58:05,130 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 752 transitions. [2023-11-06 21:58:05,131 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:58:05,131 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 752 transitions. [2023-11-06 21:58:05,135 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 250.66666666666666) internal successors, (752), 3 states have internal predecessors, (752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:58:05,140 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 537.0) internal successors, (2148), 4 states have internal predecessors, (2148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:58:05,142 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 537.0) internal successors, (2148), 4 states have internal predecessors, (2148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:58:05,143 INFO L175 Difference]: Start difference. First operand has 33 places, 33 transitions, 96 flow. Second operand 3 states and 752 transitions. [2023-11-06 21:58:05,143 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 47 transitions, 221 flow [2023-11-06 21:58:05,146 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 47 transitions, 219 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 21:58:05,147 INFO L231 Difference]: Finished difference. Result has 35 places, 33 transitions, 102 flow [2023-11-06 21:58:05,148 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=537, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=102, PETRI_PLACES=35, PETRI_TRANSITIONS=33} [2023-11-06 21:58:05,150 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 1 predicate places. [2023-11-06 21:58:05,154 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 33 transitions, 102 flow [2023-11-06 21:58:05,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 242.0) internal successors, (726), 3 states have internal predecessors, (726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:58:05,155 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:58:05,155 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:58:05,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 21:58:05,156 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-06 21:58:05,156 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:58:05,156 INFO L85 PathProgramCache]: Analyzing trace with hash 1836940223, now seen corresponding path program 1 times [2023-11-06 21:58:05,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:58:05,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161696972] [2023-11-06 21:58:05,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:05,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:58:05,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:05,320 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:58:05,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:58:05,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161696972] [2023-11-06 21:58:05,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161696972] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:58:05,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:58:05,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 21:58:05,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393679266] [2023-11-06 21:58:05,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:58:05,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 21:58:05,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:58:05,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:58:05,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:58:05,331 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 235 out of 537 [2023-11-06 21:58:05,333 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 33 transitions, 102 flow. Second operand has 3 states, 3 states have (on average 242.66666666666666) internal successors, (728), 3 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:58:05,333 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:58:05,333 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 235 of 537 [2023-11-06 21:58:05,334 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:58:05,514 INFO L124 PetriNetUnfolderBase]: 353/544 cut-off events. [2023-11-06 21:58:05,514 INFO L125 PetriNetUnfolderBase]: For 232/232 co-relation queries the response was YES. [2023-11-06 21:58:05,516 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1333 conditions, 544 events. 353/544 cut-off events. For 232/232 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1625 event pairs, 139 based on Foata normal form. 14/503 useless extension candidates. Maximal degree in co-relation 408. Up to 460 conditions per place. [2023-11-06 21:58:05,520 INFO L140 encePairwiseOnDemand]: 534/537 looper letters, 34 selfloop transitions, 2 changer transitions 7/43 dead transitions. [2023-11-06 21:58:05,520 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 43 transitions, 211 flow [2023-11-06 21:58:05,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 21:58:05,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 21:58:05,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 746 transitions. [2023-11-06 21:58:05,524 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46306641837368095 [2023-11-06 21:58:05,524 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 746 transitions. [2023-11-06 21:58:05,525 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 746 transitions. [2023-11-06 21:58:05,525 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:58:05,526 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 746 transitions. [2023-11-06 21:58:05,528 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 248.66666666666666) internal successors, (746), 3 states have internal predecessors, (746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:58:05,534 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 537.0) internal successors, (2148), 4 states have internal predecessors, (2148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:58:05,536 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 537.0) internal successors, (2148), 4 states have internal predecessors, (2148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:58:05,536 INFO L175 Difference]: Start difference. First operand has 35 places, 33 transitions, 102 flow. Second operand 3 states and 746 transitions. [2023-11-06 21:58:05,536 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 43 transitions, 211 flow [2023-11-06 21:58:05,540 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 43 transitions, 209 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 21:58:05,542 INFO L231 Difference]: Finished difference. Result has 37 places, 34 transitions, 112 flow [2023-11-06 21:58:05,542 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=537, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=112, PETRI_PLACES=37, PETRI_TRANSITIONS=34} [2023-11-06 21:58:05,544 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 3 predicate places. [2023-11-06 21:58:05,544 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 34 transitions, 112 flow [2023-11-06 21:58:05,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 242.66666666666666) internal successors, (728), 3 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:58:05,545 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:58:05,546 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:58:05,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 21:58:05,546 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-06 21:58:05,547 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:58:05,547 INFO L85 PathProgramCache]: Analyzing trace with hash -1088641936, now seen corresponding path program 1 times [2023-11-06 21:58:05,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:58:05,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321418711] [2023-11-06 21:58:05,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:05,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:58:05,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:05,866 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 21:58:05,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:58:05,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321418711] [2023-11-06 21:58:05,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321418711] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:58:05,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:58:05,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 21:58:05,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441442490] [2023-11-06 21:58:05,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:58:05,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 21:58:05,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:58:05,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 21:58:05,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 21:58:06,005 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 537 [2023-11-06 21:58:06,007 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 34 transitions, 112 flow. Second operand has 4 states, 4 states have (on average 225.25) internal successors, (901), 4 states have internal predecessors, (901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:58:06,008 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:58:06,008 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 537 [2023-11-06 21:58:06,008 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:58:06,222 INFO L124 PetriNetUnfolderBase]: 394/632 cut-off events. [2023-11-06 21:58:06,222 INFO L125 PetriNetUnfolderBase]: For 241/241 co-relation queries the response was YES. [2023-11-06 21:58:06,224 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1584 conditions, 632 events. 394/632 cut-off events. For 241/241 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 2038 event pairs, 291 based on Foata normal form. 14/638 useless extension candidates. Maximal degree in co-relation 546. Up to 545 conditions per place. [2023-11-06 21:58:06,228 INFO L140 encePairwiseOnDemand]: 529/537 looper letters, 33 selfloop transitions, 2 changer transitions 23/58 dead transitions. [2023-11-06 21:58:06,228 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 58 transitions, 282 flow [2023-11-06 21:58:06,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 21:58:06,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-06 21:58:06,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1150 transitions. [2023-11-06 21:58:06,234 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42830540037243947 [2023-11-06 21:58:06,234 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1150 transitions. [2023-11-06 21:58:06,235 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1150 transitions. [2023-11-06 21:58:06,236 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:58:06,236 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1150 transitions. [2023-11-06 21:58:06,241 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 230.0) internal successors, (1150), 5 states have internal predecessors, (1150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:58:06,249 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 537.0) internal successors, (3222), 6 states have internal predecessors, (3222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:58:06,252 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 537.0) internal successors, (3222), 6 states have internal predecessors, (3222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:58:06,252 INFO L175 Difference]: Start difference. First operand has 37 places, 34 transitions, 112 flow. Second operand 5 states and 1150 transitions. [2023-11-06 21:58:06,252 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 58 transitions, 282 flow [2023-11-06 21:58:06,254 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 58 transitions, 280 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 21:58:06,255 INFO L231 Difference]: Finished difference. Result has 43 places, 35 transitions, 132 flow [2023-11-06 21:58:06,256 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=537, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=132, PETRI_PLACES=43, PETRI_TRANSITIONS=35} [2023-11-06 21:58:06,257 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 9 predicate places. [2023-11-06 21:58:06,257 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 35 transitions, 132 flow [2023-11-06 21:58:06,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 225.25) internal successors, (901), 4 states have internal predecessors, (901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:58:06,258 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:58:06,258 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:58:06,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 21:58:06,259 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-06 21:58:06,259 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:58:06,259 INFO L85 PathProgramCache]: Analyzing trace with hash 738169012, now seen corresponding path program 1 times [2023-11-06 21:58:06,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:58:06,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685843329] [2023-11-06 21:58:06,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:06,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:58:06,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:06,473 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 21:58:06,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:58:06,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685843329] [2023-11-06 21:58:06,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685843329] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:58:06,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:58:06,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 21:58:06,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577089393] [2023-11-06 21:58:06,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:58:06,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 21:58:06,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:58:06,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 21:58:06,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 21:58:06,613 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 537 [2023-11-06 21:58:06,615 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 35 transitions, 132 flow. Second operand has 4 states, 4 states have (on average 225.5) internal successors, (902), 4 states have internal predecessors, (902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:58:06,615 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:58:06,615 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 537 [2023-11-06 21:58:06,615 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:58:06,890 INFO L124 PetriNetUnfolderBase]: 431/697 cut-off events. [2023-11-06 21:58:06,890 INFO L125 PetriNetUnfolderBase]: For 305/305 co-relation queries the response was YES. [2023-11-06 21:58:06,892 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1778 conditions, 697 events. 431/697 cut-off events. For 305/305 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 2385 event pairs, 327 based on Foata normal form. 6/700 useless extension candidates. Maximal degree in co-relation 1757. Up to 543 conditions per place. [2023-11-06 21:58:06,895 INFO L140 encePairwiseOnDemand]: 532/537 looper letters, 33 selfloop transitions, 3 changer transitions 23/59 dead transitions. [2023-11-06 21:58:06,896 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 59 transitions, 326 flow [2023-11-06 21:58:06,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 21:58:06,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-06 21:58:06,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 931 transitions. [2023-11-06 21:58:06,901 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4334264432029795 [2023-11-06 21:58:06,901 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 931 transitions. [2023-11-06 21:58:06,901 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 931 transitions. [2023-11-06 21:58:06,902 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:58:06,902 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 931 transitions. [2023-11-06 21:58:06,905 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 232.75) internal successors, (931), 4 states have internal predecessors, (931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:58:06,910 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 537.0) internal successors, (2685), 5 states have internal predecessors, (2685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:58:06,911 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 537.0) internal successors, (2685), 5 states have internal predecessors, (2685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:58:06,911 INFO L175 Difference]: Start difference. First operand has 43 places, 35 transitions, 132 flow. Second operand 4 states and 931 transitions. [2023-11-06 21:58:06,912 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 59 transitions, 326 flow [2023-11-06 21:58:06,913 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 59 transitions, 302 flow, removed 11 selfloop flow, removed 3 redundant places. [2023-11-06 21:58:06,915 INFO L231 Difference]: Finished difference. Result has 43 places, 36 transitions, 136 flow [2023-11-06 21:58:06,915 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=537, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=136, PETRI_PLACES=43, PETRI_TRANSITIONS=36} [2023-11-06 21:58:06,916 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 9 predicate places. [2023-11-06 21:58:06,916 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 36 transitions, 136 flow [2023-11-06 21:58:06,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 225.5) internal successors, (902), 4 states have internal predecessors, (902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:58:06,917 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:58:06,917 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:58:06,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-06 21:58:06,917 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-06 21:58:06,918 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:58:06,918 INFO L85 PathProgramCache]: Analyzing trace with hash 228521489, now seen corresponding path program 1 times [2023-11-06 21:58:06,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:58:06,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568731152] [2023-11-06 21:58:06,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:06,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:58:06,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:07,112 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 21:58:07,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:58:07,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568731152] [2023-11-06 21:58:07,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568731152] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:58:07,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:58:07,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 21:58:07,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345362472] [2023-11-06 21:58:07,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:58:07,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 21:58:07,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:58:07,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 21:58:07,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 21:58:07,260 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 537 [2023-11-06 21:58:07,261 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 36 transitions, 136 flow. Second operand has 4 states, 4 states have (on average 225.75) internal successors, (903), 4 states have internal predecessors, (903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:58:07,261 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:58:07,262 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 537 [2023-11-06 21:58:07,262 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:58:07,486 INFO L124 PetriNetUnfolderBase]: 414/668 cut-off events. [2023-11-06 21:58:07,487 INFO L125 PetriNetUnfolderBase]: For 258/258 co-relation queries the response was YES. [2023-11-06 21:58:07,488 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1683 conditions, 668 events. 414/668 cut-off events. For 258/258 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 2237 event pairs, 315 based on Foata normal form. 4/669 useless extension candidates. Maximal degree in co-relation 1655. Up to 541 conditions per place. [2023-11-06 21:58:07,492 INFO L140 encePairwiseOnDemand]: 529/537 looper letters, 31 selfloop transitions, 6 changer transitions 17/54 dead transitions. [2023-11-06 21:58:07,492 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 54 transitions, 292 flow [2023-11-06 21:58:07,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 21:58:07,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-06 21:58:07,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1146 transitions. [2023-11-06 21:58:07,498 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42681564245810055 [2023-11-06 21:58:07,498 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1146 transitions. [2023-11-06 21:58:07,499 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1146 transitions. [2023-11-06 21:58:07,500 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:58:07,500 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1146 transitions. [2023-11-06 21:58:07,504 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 229.2) internal successors, (1146), 5 states have internal predecessors, (1146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:58:07,510 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 537.0) internal successors, (3222), 6 states have internal predecessors, (3222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:58:07,512 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 537.0) internal successors, (3222), 6 states have internal predecessors, (3222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:58:07,512 INFO L175 Difference]: Start difference. First operand has 43 places, 36 transitions, 136 flow. Second operand 5 states and 1146 transitions. [2023-11-06 21:58:07,512 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 54 transitions, 292 flow [2023-11-06 21:58:07,514 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 54 transitions, 282 flow, removed 2 selfloop flow, removed 3 redundant places. [2023-11-06 21:58:07,515 INFO L231 Difference]: Finished difference. Result has 46 places, 37 transitions, 152 flow [2023-11-06 21:58:07,516 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=537, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=152, PETRI_PLACES=46, PETRI_TRANSITIONS=37} [2023-11-06 21:58:07,516 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 12 predicate places. [2023-11-06 21:58:07,517 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 37 transitions, 152 flow [2023-11-06 21:58:07,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 225.75) internal successors, (903), 4 states have internal predecessors, (903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:58:07,517 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:58:07,518 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:58:07,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-06 21:58:07,518 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-06 21:58:07,518 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:58:07,519 INFO L85 PathProgramCache]: Analyzing trace with hash -309258548, now seen corresponding path program 1 times [2023-11-06 21:58:07,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:58:07,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175792741] [2023-11-06 21:58:07,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:07,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:58:07,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:07,964 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 21:58:07,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:58:07,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175792741] [2023-11-06 21:58:07,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175792741] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 21:58:07,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1421329939] [2023-11-06 21:58:07,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:07,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:58:07,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d2ff082-d528-43eb-88bf-22703ae2f05b/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:58:07,969 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d2ff082-d528-43eb-88bf-22703ae2f05b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 21:58:07,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d2ff082-d528-43eb-88bf-22703ae2f05b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-06 21:58:08,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:08,156 INFO L262 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-06 21:58:08,162 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:58:08,319 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 21:58:08,319 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 21:58:08,485 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 21:58:08,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1421329939] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 21:58:08,486 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 21:58:08,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 12 [2023-11-06 21:58:08,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090371321] [2023-11-06 21:58:08,486 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 21:58:08,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-06 21:58:08,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:58:08,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-06 21:58:08,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2023-11-06 21:58:09,004 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 209 out of 537 [2023-11-06 21:58:09,008 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 37 transitions, 152 flow. Second operand has 13 states, 13 states have (on average 212.15384615384616) internal successors, (2758), 13 states have internal predecessors, (2758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:58:09,008 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:58:09,008 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 209 of 537 [2023-11-06 21:58:09,008 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:58:09,445 INFO L124 PetriNetUnfolderBase]: 421/686 cut-off events. [2023-11-06 21:58:09,445 INFO L125 PetriNetUnfolderBase]: For 274/274 co-relation queries the response was YES. [2023-11-06 21:58:09,447 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1751 conditions, 686 events. 421/686 cut-off events. For 274/274 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2287 event pairs, 176 based on Foata normal form. 8/692 useless extension candidates. Maximal degree in co-relation 1387. Up to 460 conditions per place. [2023-11-06 21:58:09,451 INFO L140 encePairwiseOnDemand]: 529/537 looper letters, 36 selfloop transitions, 4 changer transitions 41/81 dead transitions. [2023-11-06 21:58:09,451 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 81 transitions, 454 flow [2023-11-06 21:58:09,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-06 21:58:09,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-06 21:58:09,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1957 transitions. [2023-11-06 21:58:09,462 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40492447755017585 [2023-11-06 21:58:09,462 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1957 transitions. [2023-11-06 21:58:09,462 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1957 transitions. [2023-11-06 21:58:09,464 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:58:09,464 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1957 transitions. [2023-11-06 21:58:09,471 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 217.44444444444446) internal successors, (1957), 9 states have internal predecessors, (1957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:58:09,481 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 537.0) internal successors, (5370), 10 states have internal predecessors, (5370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:58:09,485 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 537.0) internal successors, (5370), 10 states have internal predecessors, (5370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:58:09,485 INFO L175 Difference]: Start difference. First operand has 46 places, 37 transitions, 152 flow. Second operand 9 states and 1957 transitions. [2023-11-06 21:58:09,485 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 81 transitions, 454 flow [2023-11-06 21:58:09,488 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 81 transitions, 430 flow, removed 4 selfloop flow, removed 3 redundant places. [2023-11-06 21:58:09,490 INFO L231 Difference]: Finished difference. Result has 55 places, 38 transitions, 164 flow [2023-11-06 21:58:09,491 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=537, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=164, PETRI_PLACES=55, PETRI_TRANSITIONS=38} [2023-11-06 21:58:09,494 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 21 predicate places. [2023-11-06 21:58:09,494 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 38 transitions, 164 flow [2023-11-06 21:58:09,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 212.15384615384616) internal successors, (2758), 13 states have internal predecessors, (2758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:58:09,496 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:58:09,497 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:58:09,509 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d2ff082-d528-43eb-88bf-22703ae2f05b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-06 21:58:09,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d2ff082-d528-43eb-88bf-22703ae2f05b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-06 21:58:09,710 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-06 21:58:09,711 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:58:09,711 INFO L85 PathProgramCache]: Analyzing trace with hash -1199212024, now seen corresponding path program 2 times [2023-11-06 21:58:09,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:58:09,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614228863] [2023-11-06 21:58:09,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:09,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:58:09,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:09,955 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-06 21:58:09,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:58:09,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614228863] [2023-11-06 21:58:09,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614228863] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:58:09,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:58:09,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 21:58:09,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144856455] [2023-11-06 21:58:09,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:58:09,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 21:58:09,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:58:09,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 21:58:09,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-06 21:58:09,965 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 235 out of 537 [2023-11-06 21:58:09,967 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 38 transitions, 164 flow. Second operand has 5 states, 5 states have (on average 240.6) internal successors, (1203), 5 states have internal predecessors, (1203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:58:09,967 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:58:09,967 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 235 of 537 [2023-11-06 21:58:09,968 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:58:10,385 INFO L124 PetriNetUnfolderBase]: 881/1332 cut-off events. [2023-11-06 21:58:10,385 INFO L125 PetriNetUnfolderBase]: For 795/795 co-relation queries the response was YES. [2023-11-06 21:58:10,390 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3667 conditions, 1332 events. 881/1332 cut-off events. For 795/795 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 4920 event pairs, 346 based on Foata normal form. 42/1374 useless extension candidates. Maximal degree in co-relation 3627. Up to 492 conditions per place. [2023-11-06 21:58:10,400 INFO L140 encePairwiseOnDemand]: 532/537 looper letters, 65 selfloop transitions, 9 changer transitions 0/74 dead transitions. [2023-11-06 21:58:10,400 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 74 transitions, 434 flow [2023-11-06 21:58:10,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 21:58:10,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-06 21:58:10,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1006 transitions. [2023-11-06 21:58:10,406 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46834264432029793 [2023-11-06 21:58:10,406 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1006 transitions. [2023-11-06 21:58:10,407 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1006 transitions. [2023-11-06 21:58:10,408 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:58:10,408 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1006 transitions. [2023-11-06 21:58:10,412 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 251.5) internal successors, (1006), 4 states have internal predecessors, (1006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:58:10,419 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 537.0) internal successors, (2685), 5 states have internal predecessors, (2685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:58:10,420 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 537.0) internal successors, (2685), 5 states have internal predecessors, (2685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:58:10,420 INFO L175 Difference]: Start difference. First operand has 55 places, 38 transitions, 164 flow. Second operand 4 states and 1006 transitions. [2023-11-06 21:58:10,421 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 74 transitions, 434 flow [2023-11-06 21:58:10,424 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 74 transitions, 420 flow, removed 4 selfloop flow, removed 5 redundant places. [2023-11-06 21:58:10,426 INFO L231 Difference]: Finished difference. Result has 51 places, 44 transitions, 219 flow [2023-11-06 21:58:10,427 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=537, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=219, PETRI_PLACES=51, PETRI_TRANSITIONS=44} [2023-11-06 21:58:10,428 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 17 predicate places. [2023-11-06 21:58:10,428 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 44 transitions, 219 flow [2023-11-06 21:58:10,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 240.6) internal successors, (1203), 5 states have internal predecessors, (1203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:58:10,429 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:58:10,430 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:58:10,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-06 21:58:10,430 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-06 21:58:10,431 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:58:10,431 INFO L85 PathProgramCache]: Analyzing trace with hash -1975461209, now seen corresponding path program 1 times [2023-11-06 21:58:10,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:58:10,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083792174] [2023-11-06 21:58:10,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:10,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:58:10,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:10,781 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-06 21:58:10,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:58:10,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083792174] [2023-11-06 21:58:10,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083792174] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 21:58:10,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [715224051] [2023-11-06 21:58:10,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:10,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:58:10,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d2ff082-d528-43eb-88bf-22703ae2f05b/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:58:10,784 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d2ff082-d528-43eb-88bf-22703ae2f05b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 21:58:10,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d2ff082-d528-43eb-88bf-22703ae2f05b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-06 21:58:10,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:10,974 INFO L262 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-06 21:58:10,977 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:58:11,072 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-06 21:58:11,072 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 21:58:11,216 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-06 21:58:11,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [715224051] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 21:58:11,216 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 21:58:11,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2023-11-06 21:58:11,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403867707] [2023-11-06 21:58:11,217 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 21:58:11,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-06 21:58:11,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:58:11,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-06 21:58:11,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2023-11-06 21:58:11,577 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 211 out of 537 [2023-11-06 21:58:11,580 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 44 transitions, 219 flow. Second operand has 12 states, 12 states have (on average 215.16666666666666) internal successors, (2582), 12 states have internal predecessors, (2582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:58:11,581 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:58:11,581 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 211 of 537 [2023-11-06 21:58:11,581 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:58:12,206 INFO L124 PetriNetUnfolderBase]: 1118/1782 cut-off events. [2023-11-06 21:58:12,207 INFO L125 PetriNetUnfolderBase]: For 2253/2253 co-relation queries the response was YES. [2023-11-06 21:58:12,214 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5581 conditions, 1782 events. 1118/1782 cut-off events. For 2253/2253 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 7532 event pairs, 731 based on Foata normal form. 132/1912 useless extension candidates. Maximal degree in co-relation 5544. Up to 1328 conditions per place. [2023-11-06 21:58:12,224 INFO L140 encePairwiseOnDemand]: 530/537 looper letters, 39 selfloop transitions, 6 changer transitions 44/89 dead transitions. [2023-11-06 21:58:12,224 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 89 transitions, 600 flow [2023-11-06 21:58:12,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-06 21:58:12,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-06 21:58:12,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1971 transitions. [2023-11-06 21:58:12,232 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40782122905027934 [2023-11-06 21:58:12,233 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1971 transitions. [2023-11-06 21:58:12,233 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1971 transitions. [2023-11-06 21:58:12,235 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:58:12,235 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1971 transitions. [2023-11-06 21:58:12,249 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 219.0) internal successors, (1971), 9 states have internal predecessors, (1971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:58:12,267 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 537.0) internal successors, (5370), 10 states have internal predecessors, (5370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:58:12,269 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 537.0) internal successors, (5370), 10 states have internal predecessors, (5370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:58:12,270 INFO L175 Difference]: Start difference. First operand has 51 places, 44 transitions, 219 flow. Second operand 9 states and 1971 transitions. [2023-11-06 21:58:12,270 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 89 transitions, 600 flow [2023-11-06 21:58:12,275 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 89 transitions, 574 flow, removed 13 selfloop flow, removed 0 redundant places. [2023-11-06 21:58:12,278 INFO L231 Difference]: Finished difference. Result has 62 places, 45 transitions, 235 flow [2023-11-06 21:58:12,278 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=537, PETRI_DIFFERENCE_MINUEND_FLOW=207, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=235, PETRI_PLACES=62, PETRI_TRANSITIONS=45} [2023-11-06 21:58:12,279 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 28 predicate places. [2023-11-06 21:58:12,279 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 45 transitions, 235 flow [2023-11-06 21:58:12,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 215.16666666666666) internal successors, (2582), 12 states have internal predecessors, (2582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:58:12,280 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:58:12,280 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:58:12,291 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d2ff082-d528-43eb-88bf-22703ae2f05b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-06 21:58:12,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d2ff082-d528-43eb-88bf-22703ae2f05b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-06 21:58:12,487 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-06 21:58:12,487 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:58:12,487 INFO L85 PathProgramCache]: Analyzing trace with hash -1590153834, now seen corresponding path program 2 times [2023-11-06 21:58:12,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:58:12,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296549611] [2023-11-06 21:58:12,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:12,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:58:12,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:17,943 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:58:17,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:58:17,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296549611] [2023-11-06 21:58:17,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296549611] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 21:58:17,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1499267826] [2023-11-06 21:58:17,944 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 21:58:17,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:58:17,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d2ff082-d528-43eb-88bf-22703ae2f05b/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:58:17,950 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d2ff082-d528-43eb-88bf-22703ae2f05b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 21:58:17,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d2ff082-d528-43eb-88bf-22703ae2f05b/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-06 21:58:18,168 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-06 21:58:18,169 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 21:58:18,173 INFO L262 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 72 conjunts are in the unsatisfiable core [2023-11-06 21:58:18,183 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:58:18,668 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-06 21:58:18,810 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-06 21:58:18,933 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-06 21:58:19,054 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-06 21:58:20,270 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-06 21:58:20,271 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 21:58:30,531 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 21:58:30,531 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 249 treesize of output 165 [2023-11-06 21:58:31,028 INFO L322 Elim1Store]: treesize reduction 18, result has 92.5 percent of original size [2023-11-06 21:58:31,031 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 108503 treesize of output 100275 [2023-11-06 21:58:32,273 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-06 21:58:32,281 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-06 21:58:32,416 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 21:58:32,417 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 6215 treesize of output 5604 [2023-11-06 21:58:32,722 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-06 21:58:32,730 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-06 21:58:32,846 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 21:58:32,848 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 5415 treesize of output 5204 [2023-11-06 21:58:33,184 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-06 21:58:33,193 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-06 21:58:33,301 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 21:58:33,302 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 5015 treesize of output 3604